| 移动VR洪水灾害场景构建优化与交互方法 |
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| 引用本文： | 胡亚,朱军,李维炼,张昀昊,胡明远,曹振宇.移动VR洪水灾害场景构建优化与交互方法[J].测绘学报,2018,47(8):1123-1132. |
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| 作者姓名： | 胡亚 朱军 李维炼 张昀昊 胡明远 曹振宇 |
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| 作者单位： | 1. 西南交通大学地球科学与环境工程学院, 四川 成都 611756;2. 西南交通大学高速铁路运营安全空间信息技术国家地方联合工程实验室, 四川 成都 611756;3. 香港中文大学太空与地球信息科学研究所, 香港 999077;4. 四川省基础地理信息中心, 四川 成都 610041 |
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| 基金项目： | 国家重点研发计划(2016YFC0803101)，中央高校基本科研业务费专项资金(2682018CX35) |
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| 摘 要： | 当前洪水灾害场景三维可视化存在沉浸感差、移动性不足等问题。本文将移动虚拟现实（virtual reality，VR）与洪水灾害场景三维可视化相结合，提出了移动VR洪水灾害场景构建优化与交互方法。该方法首先提出了一种免插件B/S架构下的移动VR场景构建方案，然后从多样化场景数据组织、场景数据量优化控制及自适应调度对移动VR场景构建进行了优化，最后设计了基于凝视的洪水灾害场景漫游探索、信息交互查询等交互分析模式。通过构建试验平台并选择案例进行试验，证明本文方法能够有效支持在智能手机上进行洪水灾害场景流畅地沉浸式展示与交互探索分析。
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| 关 键 词： | 虚拟地理环境 洪水灾害 移动VR 场景优化 交互探索 |
| 收稿时间： | 2018-03-16 |
| 修稿时间： | 2018-06-11 |
A Construction Optimization and Interaction Method for Flood Disaster Scenes Based on Mobile VR |
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| HU Ya,ZHU Jun,LI Weilian,ZHANG Yunhao,HU Mingyuan,CAO Zhenyu.A Construction Optimization and Interaction Method for Flood Disaster Scenes Based on Mobile VR[J].Acta Geodaetica et Cartographica Sinica,2018,47(8):1123-1132. |
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| Authors: | HU Ya ZHU Jun LI Weilian ZHANG Yunhao HU Mingyuan CAO Zhenyu |
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| Institution: | 1. Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu 611756, China;2. State-Province Joint Engineering Laboratory of Spatial Information Technology of High-speed Rail Safety, Southwest Jiaotong University, Chengdu 611756, China;3. Institute of Space and Earth Information Science, Hong Kong 999077, China;4. Sichuan Geomatics Center, Chengdu 610041, China |
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| Abstract: | The existing three-dimensional (3D) visualization of flood disaster scenes has problems such as weak immersion and lack of mobility.This paper combines mobile virtual reality (VR) with 3D visualization of flood disaster scenes,and proposes a construction optimization and interaction method for flood disaster scenes based on mobile VR.Firstly,a mobile VR scene construction scheme under a plugin-free B/S architecture is proposed.Second,certain key technologies for scene optimization are discussed,including diverse modes of scene data organization,optimization control of scene data volume and adaptive scheduling of mobile scenes.Finally,some interaction and analysis schemes based on gaze,such as scene roaming exploration and interactive flood information query,are designed.A test platform was developed and a case experiment analysis was carried out.The experiment results demonstrate that the flood disaster scene constructed by the methods addressed in this paper can be displayed smoothly and explored interactively on smart phones. |
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